// $Id: RecordingAddController.java 302 2009-04-26 16:05:42Z huijzer $

/*    
    Aoide is a web-based music catalog using the Spring Framework.
    Copyright (C) 2009  Arjan Huijzer

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    You can contact Arjan Huijzer by sending an e-mail to huijzer@gmail.com.
*/

package org.aoide.web.controller;

import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;

import org.aoide.core.persistence.Recording;
import org.aoide.core.persistence.RecordingDao;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.google.appengine.api.datastore.Blob;

@Controller
@RequestMapping("/recordingAddCover.action")
public class RecordingAddCoverController  {
	
	@Autowired
	private RecordingDao dao;
	
	@RequestMapping(method = RequestMethod.GET)
    public String setupForm(ModelMap model) {
        return "recordingAddCover";
    }
	
	@RequestMapping(method = RequestMethod.POST)
	protected ModelAndView onSubmit(@ModelAttribute("recording") Recording recording, BindingResult bindingResult, HttpServletRequest request) throws Exception {

		ServletFileUpload upload = new ServletFileUpload();
		FileItemIterator iterator = upload.getItemIterator(request);
				
		while (iterator.hasNext()) {
	        FileItemStream item = iterator.next();
	        InputStream stream = item.openStream();
	        if (!item.isFormField()) {
	        	Blob cover = new Blob(IOUtils.toByteArray(stream));
	        	recording.setCover(cover);
	        }
		}
		
		dao.save(recording);

		ModelAndView mav = new ModelAndView("recordingDisplay", "recording", recording);
		
		return mav;
	}
	
	
    @ModelAttribute("recording")
    public Recording formBackingObject(@RequestParam("uuid") String uuid) {
        Recording recording = dao.load(uuid); 
        return recording;
    }

}
